Question

ArgumentOutOfRange在datagridview中分配数据源时发生异常。

编辑：当我使用List代替BindingList时，此代码可以正常工作。

环境：单声道4.0.12。 C＃winform应用程序

代码：

public class DataGridViewStudyReference : CustomControls.DataGridViewDataEntry<StudyRefrenceValueBusinessObjectNew>
{ 
}

public class DataGridViewDataEntry<BindingSourceType> : DataGridView
{
        public void ResetDataSource()
        {
            if (DataEntrySource == null)
            {
                DataEntrySource = new BindingList<BindingSourceType>();
                this.DataSource = DataEntrySource;
            }
            else
            {
                DataEntrySource.Clear();
            }
        }
}

public class StudyRefrenceValueBusinessObjectNew
{
    public long StudyReferenceID { get; set; }

    public long StudyID { get; set; }

    public int GenderValue { get; set; }

    public int AgeInitial { get; set; }

    public int AgeFinal { get; set; }

    public string TextValue { get; set; }

    public int ValueInitial { get; set; }

    public int ValueFinal { get; set; }

}

完整的异常详情如下

消息：

索引小于0或大于或等于列表计数。参数名称：索引1

堆栈追踪：

  at System.Collections.ArrayList.ThrowNewArgumentOutOfRangeException (System.String name, System.Object actual, System.String message) [0x00000] in <filename unknown>:0 
  at System.Collections.ArrayList.get_Item (Int32 index) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridViewCellCollection.get_Item (Int32 index) [0x00000] in <filename unknown>:0 
  at (wrapper remoting-invoke-with-check) System.Windows.Forms.DataGridViewCellCollection:get_Item (int)
  at System.Windows.Forms.DataGridView.CalculateColumnCellWidth (Int32 index, DataGridViewAutoSizeColumnMode mode) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridView.AutoResizeColumnInternal (Int32 columnIndex, DataGridViewAutoSizeColumnMode mode) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridView.AutoResizeColumnsInternal () [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridView.OnColumnAddedInternal (System.Windows.Forms.DataGridViewColumnEventArgs e) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridView.OnColumnCollectionChanged (System.Object sender, System.ComponentModel.CollectionChangeEventArgs e) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridViewColumnCollection.OnCollectionChanged (System.ComponentModel.CollectionChangeEventArgs e) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridViewColumnCollection.Add (System.Windows.Forms.DataGridViewColumn dataGridViewColumn) [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridView.DoBinding () [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridView.ReBind () [0x00000] in <filename unknown>:0 
  at System.Windows.Forms.DataGridView.set_DataSource (System.Object value) [0x00000] in <filename unknown>:0 
  at LabManagement.WinForm.CustomControls.DataGridViewDataEntry`1[LabManagement.Model.Study.StudyRefrenceValueBusinessObjectNew].ResetDataSource () [0x00020] in /home/alit/Projects/LabManagementSolution/LabManagement/LabManagement.WinForm/CustomControls/DataGridViewDataEntry.cs:64

任何人都可以帮助我，为什么会发生这种异常？

Answer 1

我找到了问题的原因。

在我的DataGridView AutoSizeColumnsMode模式下设置为AllCell我将其更改为None。然后删除此错误。在单声道框架中，列大小计算似乎存在内部问题，我认为这是单声道框架的错误。但是目前我的问题已经解决了。

ArgumentOutOfRange在mono中分配datagridview的数据源时发生异常

1 个答案: